EP 0087028 A1 19830831 - Automatic chemical analyzer.
Title (en)
Automatic chemical analyzer.
Title (de)
Einrichtung zur automatischen chemischen Analyse.
Title (fr)
Appareil automatique d'analyse chimique.
Publication
Application
Priority
- JP 2169782 A 19820213
- JP 14920182 A 19820830
Abstract (en)
In an automatic chemical analyzer, a plurality of reaction tubes (8) are arranged at regular intervals on a circular line along the peripheral edge of a discoid reaction tube holder (5). The lower-half portions of the reaction tubes are immersed in water in a thermostatic bath (1) kept at a fixed temperature. One or more reagents and samples are contained in the reaction tubes. A suction body (9) and a sampling body (10) are supported for vertical motion, extending parallel to each other right over the circular line. Plunger pumps (21a), (25a) are coupled to the suction and sampling bodies. An absorbancy measuring device (17, 18, 19) is interposed between the suction body (9) and its corresponding plunger pump (21a). The reagent is sucked through a sampling nozzle (10a) at the lower end of the sampling body (10) by its correspoding plunger pump (25a), and is dispensed by a given amount at a time to the samples in the reaction tubes through the sampling nozzle as the reaction tube holder rotates. After biochemical reactions between the samples and the reagent are ended or in the middle of the reactions, reaction mixtures are sucked through a suction nozzle (9a) at the lower end of the suction body (9) by its corresponding plunger pump (21a), and are supplied to the absorbancy measuring device for measurement of the quantity of light transmitted through the reaction mixtures.
IPC 1-7
IPC 8 full level
G01N 35/02 (2006.01); G01N 35/00 (2006.01)
CPC (source: EP)
G01N 35/025 (2013.01); G01N 2035/00396 (2013.01)
Citation (search report)
- [A] EP 0037079 A1 19811007 - TOKYO SHIBAURA ELECTRIC CO [JP]
- [A] US 3917455 A 19751104 - BAK BELA, et al
- [A] US 3549330 A 19701222 - JUNGNER OLOF GUNNAR HUGO, et al
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0087028 A1 19830831; EP 0087028 B1 19860827; DE 3365508 D1 19861002
DOCDB simple family (application)
EP 83101067 A 19830204; DE 3365508 T 19830204